With these additions, the O’s are likely hoping to spur some competition in camp at the fringes of the active roster. Marinez, 29, pitched to a 3.70 ERA in 58 1/3 MLB innings in 2017 with three organizations and could certainly be a middle relief option. Rodriguez struggled to a 6.33 ERA with 6.0 K/9 and 5.0 BB/9 in 27 innings on the season with the Phillies, but he could join Edgin and O’Rourke in pushing the O’s existing southpaws.

Meanwhile, it seems that Tejada and Sardinas could duke it out in Spring Training for a utility job. Both spent time in the Orioles organization last year. Tejada received a run at short before the team added Tim Beckham, but managed only a .230/.293/.283 slash. The 24-year-old Sardinas hit .319/.348/.419 over 331 plate appearances at Triple-A Norfolk after he was cut loose by the Padres.

The Rangers have announced a series of moves today as the month of September begins. Texas designated righty Jhan Marinez and lefty Joely Rodriguez to open two 40-man roster spots. Texas has also designated lefty Dario Alvarez, MLB.com’s T.R. Sullivan tweets.

Those three hurlers are a few of the many that have cycled through the Texas pen this year, as the organization has scrambled to make up for injured and/or ineffective pitching. Marinez has produced mostly solid results in time with three organizations this year, though clearly teams view him as a fill-in asset. Rodriguez has allowed exactly 19 earned runs in 27 frames at both the MLB and Triple-A levels this year. And Alvarez actually managed to carry a 2.76 ERA over 16 1/3 MLB innings this year, but he was averaging 7.7 B/9 to go with 9.4 K/9.

Leading the team’s September call-up list is lefty Jake Diekman, whose absence to date was one of the drivers of the bullpen churn. Diekman had missed the entire season after undergoing surgery just before camp to address inflammatory bowel disease. (You can and should read more about his journey here.) The Rangers can control the southpaw for one more season via arbitration; in all likelihood, he won’t command much of a raise on his current $2.55MM salary since he doesn’t have much time to accrue innings.

The Rangers have claimed righty Jhan Marinez off waivers from the Pirates, per an announcement from Texas. Marinez had been designated for assignment over the weekend.

Marinez, 28, already moved from the Brewers to the Bucs this year after a previous trip through DFA limbo. He has seen extensive action in the majors over the past two seasons after sporadic time earlier in his career. All told, through 118 1/3 innings, Marinez carries a 3.50 ERA with 7.1 K/9 and 3.7 BB/9.

The Giants have announced that the Pirates have been awarded Giants reliever George Kontos on a waiver claim. The Giants evidently placed Kontos on revocable waivers, as Henry Schulman of the San Francisco Chronicle tweets, then gave him up without receiving anything in return. To clear space for Kontos and the newly acquired Sean Rodriguez, the Pirates have designated reliever Jhan Marinez and outfielder Danny Ortiz for assignment.

For the Giants, the move clears a 25-man spot for Chris Stratton, who is set to pitch against the Diamondbacks today, and a more permanent spot in the bullpen for Matt Cain. It also clears a 40-man spot for Pablo Sandoval, who the team recently promoted.

That the Giants would essentially give Kontos away still rates as something of a surprise, since he’s been effective this season. The 32-year-old righty has posted a 3.83 ERA, 9.6 K/9, 3.0 BB/9 and a 47.9 GB%. While Kontos’ exact profile has shifted from year to year (he had a K/9 of just 5.9 last season, for example), he’s been effective since joining the Giants early in the 2012 season and has a 3.05 career ERA, albeit with peripherals that are somewhat less impressive than that.

Kontos will help bolster a Pirates bullpen that has rated as about average this season and that effectively swapped Tony Watson for Joaquin Benoit at the trade deadline. If Kontos performs well for the Pirates, they can keep him beyond this season — he makes just $1.75MM this year, and is not eligible for free agency until after 2019.

The 28-year-old Marinez arrived in Pittsburgh via a waiver claim from the Brewers in May. He posted a 3.18 ERA, 6.9 K/9 and 3.2 BB/9 in 34 innings in the Pirates’ bullpen and has a career 50.7 GB%. He’s struggled with walks in the past, but with his mid-90s fastball and ground-ball-heavy profile, he could attract interest on the waiver wire yet again.

The 27-year-old Ortiz has spent the bulk of the 2017 season with Triple-A Indianapolis, hitting .259/.291/.450 over 342 plate appearances while playing all three outfield spots. The Twins product also collected his first 13 big-league plate appearances this season.

The Pirates have claimed righty Jhan Marinez off waivers from the Brewers, per a club announcement (h/t MLB.com’s Adam Berry, on Twitter). He had been designated for assignment earlier in the week.

Marinez, an out-of-options reliever, has scuffled early in 2017, leading to his loss of a roster spot in Milwaukee. Over 16 2/3 frames, he owns a 5.40 ERA with 14 strikeouts and 11 walks.

That said, there are obviously some things to like about the 28-year-old. He was much better last year, with a 3.18 ERA over his 62 1/3 innings. And Marinez is also currently trending northward in both average fastball velocity (sitting over 95.4 with the four-seamer and 94.5 with the two-seamer) and groundball induction (57.4%).

The Brewers announced that they’ve designated right-hander Jhan Marinez for assignment and recalled lefty Brent Suter to take his place on the roster. The move makes the 27-year-old Suter the lone southpaw on what had been an entirely right-handed Brewers pitching staff.

Marinez, 28, was acquired from the Rays in exchange for cash last season. The right-hander turned in a strong performance with the 2016 Brewers, logging a 3.22 ERA with 7.2 K/9 against 3.2 BB/9 in 58 2/3 innings, but he’s struggled to a 5.40 earned run average through his first 16 2/3 innings in 2017. More troubling, perhaps, is that after walking just 21 hitters all last season, Marinez has already issued 11 free passes.

Marinez does average nearly 95 mph on his fastball and has logged a 51.9 percent ground-ball rate across the past two seasons, so it’s possible that he could hold some intrigue to clubs in need of bullpen depth. However, he’s also out of minor league options (likely the primary factor behind Milwaukee designating him for assignment), so any club that picks him up will have to carry him on its 25-man roster.

Suter has seen action with the Brewers in each of the past two seasons, pitching a total of 29 innings with a 3.72 ERA, 6.2 K/9, 2.8 BB/9 and a 42.2 percent ground-ball rate. However, he’s also been shelled by lefties in the Majors, as same-handed opponents have clobbered him at a .356/.408/.511 clip. That production has come in an admittedly minuscule sample of 49 plate appearances, but Suter has never dominated southpaw hitters in the upper-minors, either.

Hernan Iribarren has enjoyed a largely unremarkable major league career, but he still has an interesting personal tale to tell C. Trent Rosecrans of the Cincinnati Enquirer. Once a reasonably notable prospect, Iribarren hasn’t quite yet appeared in fifty MLB games. And at 32 years of age, he’s unlikely to make a significant on-field impact for the Reds organization even if he does crack the MLB roster. Still, writes Rosecrans, Iribarren’s presence will continue to be felt, as he has provided invaluable mentoring to a variety of Cincinnati players — most notably, fellow Venezuelan infielders Jose Peraza and Eugenio Suarez.

Here’s more from the NL Central:

GM Neal Huntington suggested that the Pirates are basically resigned to the fact that third baseman Jung Ho Kang will not be available on Opening Day, Rob Biertempfel of the Pittsburgh Tribune-Review reports on Twitter. There still has not been any movement on Kang’s visa application following his conviction for driving drunk in his native South Korea. Even assuming he’s able to make it over in short order, there’ll probably be at least some time required for him to get up to speed.

The Brewers have informed catcher Manny Pina and righty Jhan Marinez that they’ll be on the active roster to open the year, MLB.com’s Adam McCalvy reports (Twitterlinks). Both were among the many Milwaukee 40-man members who enter the year without any options, so the news means that the club will avoid the need to expose them to waivers. Pina, 29, has a thin MLB track record but will share duties behind the plate with either Jett Bandy or Andrew Susac; the latter is currently dealing with neck and back issues, clouding his outlook, though both still have options. As for Marinez, he will have a chance to follow up on his solid 2016 season, in which he threw 62 1/3 innings of 3.18 ERA ball with 7.2 K/9 and 3.0 BB/9.

Meanwhile, the Brewers received some disappointing news on the farm, as righty Devin Williams is headed for Tommy John surgery, per Jim Callis of MLB.com (via Twitter). In the most recent prospect rankings of the MLB.com team, Williams takes the 18th spot among Milwaukee farmhands. The 22-year-old, a second-round pick in 2013, reached the High-A level last year and is said to carry future mid-rotation upside.

The Brewers have acquired righty Jhan Marinez from the Rays, according to a club announcement. To clear roster space, southpaw Michael Kirkman was designated for assignment.

Marinez, 27, has seen scattered major league time in parts of three seasons dating back to 2010. He’s only logged nine total frames, so there’s not much of a track record to go on. Of course, Marinez has racked up 178 1/3 frames at Triple-A in five campaigns, compiling a 3.63 ERA with 9.4 K/9 versus 4.7 BB/9.

As for Kirkman, his stay in Milwaukee didn’t last very long. The 29-year-old has received one appearance each with the Brewers and with the Padres this season, allowing five earned runs in 2 1/3 frames. Kirkman owns a 5.28 ERA in his 109 career innings at the major league level, with 8.6 K/9 to go with 4.6 BB/9.

Marinez, 27, logged 3 2/3 innings for the Rays prior to his designation and allowed one run and two hits while striking out three. It was his first big league action since he racked up 2 2/3 innings with the White Sox in 2012. Marinez, who has nine major league innings to his credit, has totaled 456 frames across 11 minor league seasons and owns a 4.00 ERA, 9.8 K/9 and 5.3 BB/9.

The Twins have called up right-hander Tyler Duffey from Triple-A and optioned infielder Jorge Polanco, the team announced. Duffey will start the Twins’ game Sunday against the Nationals in place of Ervin Santana, who has back tightness. Duffey, 25, broke into the majors last season and was excellent for the Twins, throwing 58 innings of 3.10 ERA ball with an 8.22 K/9 and 3.10 BB/9. Duffey’s standout performance has continued this year in Triple-A Rochester, where he has pitched to a 1.72 ERA and 2.98 FIP in three starts. Polanco, who’s regarded as a top-100 prospect, got the call to Minnesota last week but didn’t last long. The 22-year-old logged only eight plate appearances, giving him 28 in the big leagues since 2014.

The Rays wasted no time sending top pitching prospect Blake Snell back to Triple-A after his stellar debut at Yankee Stadium on Saturday, Roger Mooney of the Tampa Tribune tweets. With Snell returning to Durham, the Rays have selected the contract of right-hander Jhan Marinez. Snell threw five innings of one-run ball in his first major league start, holding the Yankees to two hits and a walk while striking out six. Snell got a no-decision in the Rays’ 3-2 loss. Marinez, 27, could now make his first trip to a major league mound since he picked up 2 2/3 frames for the White Sox in 2012.

The Blue Jays have optioned southpaw Chad Girodo to Triple-A to make room for right-hander Drew Hutchison, who will start their game Sunday against the A’s, reports Shi Davidi of Sportsnet (Twitter link). Girodo has tossed two scoreless innings for the Jays this year. Hutchison racked up 62 appearances (60 starts) and 335 innings with the Jays from 2014-15, but he struggled to prevent runs (4.97 ERA) despite a quality K/9 (8.41) and decent BB/9 (2.79).

The Marlins have placed third baseman Martin Prado on the paternity list and selected the contract of left-hander Cody Ege, per a club announcement. Ege, 24, will make his major league debut after recording stellar numbers in 161 2/3 minor league innings. Ege owns a 2.23 minors ERA to go with an 11.4 K/9 and 2.8 BB/9.

The Diamondbacks have recalled right-hander Enrique Burgos from Triple-A and optioned righty Silvino Bracho, the team announced. Burgos accrued 27 innings out of the D-backs’ bullpen last season and put up a lofty ERA (4.67) that belied an impressive strikeout rate (13.0 per nine). Bracho threw just 1 2/3 innings for Arizona prior to the demotion, surrendering five hits and three earned runs.

The Padres have placed utilityman Alexi Amarista on the 15-day DL (retroactive to April 20) with a right hamstring strain and recalled Cesar Vargas from Double-A, according to Dennis Lin of the San Diego Union-Tribune (Twitter link). Amarista owns a career .229/.277/.325 batting line in 1,601 major league plate appearances, but he was off to a solid start this year (.333/.440/.333 in 26 PAs). Vargas will start the Padres’ game against the Cardinals tonight. The Mexico native could be a diamond in the rough, as Chris Mitchell of Fangraphs details.

Earlier Moves

The Nationals signed righty Jaron Long to a minor league deal, the team announced. Jaron Long, the son of Mets hitting coach Kevin Long, spent 2013-15 working through the Yankees’ minor league system. Long, 24, has put up some solid totals in the minors (3.26 ERA, 6.8 K/9, 1.6 BB/9), but he hasn’t yet earned a call-up to the majors.

The Tigers have claimed catcher John Hicks off waivers from the Twins, Anthony Fenecki of the Detroit Free Press was among those to report (on Twitter). Hicks owns a .279/.325/.408 line in 1,690 minor league PAs and has thrown out a whopping 48 percent of base stealers at various levels. The 26-year-old debuted in the majors last season with the Mariners, collecting only two hits and a walk in 34 trips to the plate.

The Blue Jays announced that right-hander Arnold Leon cleared waivers and has been outrighted to Triple-A (Twitter link via Gregor Chisholm of MLB.com). Leon gave up two runs in 2 1/3 innings with the Jays before they designated him for assignment April 13. He made his major league debut last year with Oakland and posted a 4.39 ERA in 26 1/3 innings. Leon induced an average amount of ground balls (45.9 percent) and averaged 6.4 K/9 against 3.0 BB/9 during that time.

The Royals have released minor league left-hander Brandon Zajac, tweets Jeffrey Flanagan of MLB.com. Zajac was a 23rd-round pick of the Giants in 2013.

The Braves have recalled lefty reliever Matt Marksberry from Double-A and optioned right-hander Casey Kelly to Triple-A, reports Mark Bowman of MLB.com. The Braves needed a fresh arm in place of Kelly, who threw three innings of one-run ball for them on Friday. Marksberry, who has put up a 3.63 ERA over 203 1/3 career minor league innings, tossed 23 1/3 frames for the Braves last season. He compiled a 5.01 ERA to accompany an 8.1 K/9 and 6.2 BB/9.

The Mets sent right-hander Rafael Montero to Triple-A to make room for the return of starter Jacob deGrom, according to Adam Rubin of ESPN. New York called up Montero on April 12 and he went on to surrender three earned runs on five hits, one walk and three strikeouts in 2 1/3 innings. DeGrom hasn’t pitched since April 8 because of right lat tightness and medical complications with his recently born son, Jaxon, who was released from the hospital Monday.

The Red Sox recalled left-handler Roenis Elias on Friday and sent righty William Cuevas to Triple-A, per the Boston Herald. Elias, whom Boston acquired from Seattle during the offseason in the Wade Miley/Carson Smith trade, will work out of the Red Sox’s bullpen. Elias has made a pair of starts for Pawtucket this year after totaling 49 as a Mariner the previous two seasons. During that time frame, Elias combined for 277 2/3 innings of 3.99 ERA ball to go with a 7.75 K/9 and 3.47 BB/9. Cuevas, who has been in the Boston organization since 2008, made his major league debut this season to poor results before the demotion. The 25-year-old allowed five base runners (three hits and two walks) and two earned runs in 2 1/3 frames.